Hello! I want ask you about shipping cost when a seller check online about the rates to ship an small-medium package to Europe. Sometimes, some sellers habituated to ship overseas give me rational price for shipping but other times someone check online and give me prices too expensive (50 dollars as only option to certificate with tracking shipping). The question is which is the best and economic method to ship from USA to Europe whit tracking? I think there are a lot of confusion about this. Thank you!